Addressing potential metal "oil canning" is a subtle but important part of a high-quality painting-metal-roofing-singapore project. Oil canning is the visual waviness or distortion in the flat parts of the metal panels, usually caused by stress during manufacturing or installation. While painting cannot eliminate the structural effect, the finish and color choice can minimize its visi... https://kkroofspecialist.com.sg/painting-metal-roofing-singapore/